Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11762373 | Methods and internet of things systems for gate station compressor operation optimization for smart gas | Zehua SHAO, Yaqiang QUAN, Haitang XIANG, Yuefei WU | 2023-09-19 |
| 6798223 | Test methods, systems, and probes for high-frequency wireless-communications devices | Gregory Wambeke | 2004-09-28 |
| 6646521 | Connection for conducting high frequency signal between a circuit and a discrete electric component | — | 2003-11-11 |
| 6424305 | Apparatus and method for determining return loss of an electrical device | Teppo M. Lukkarila | 2002-07-23 |
| 6266021 | Apparatus and method for determining return loss of electrical device | Teppo M. Lukkarila | 2001-07-24 |
| 6232851 | Coupling structure for cavity resonators | — | 2001-05-15 |
| 6160447 | Amplifier having redundancies | — | 2000-12-12 |
| 6072824 | Circuit arrangement for reducing intermodulation in a bandpass filter system | Markku Harkonen | 2000-06-06 |
| 6023205 | Circuit arrangement for reducing passband ripple of a bandpass filter | Kimmo Antero Kyllonen | 2000-02-08 |
| 5977835 | Method and circuit arrangement for reducing passband ripple of a bandpass filter | — | 1999-11-02 |
| 5969584 | Resonating structure providing notch and bandpass filtering | Lasse Beli Ravaska, Kimmo Antero Kyllonen | 1999-10-19 |
| 5894250 | Cavity resonator filter structure having improved cavity arrangement | Lasse Beli Ravaska, Kimmo Antero Kyllonen, Lenny Russell Hill | 1999-04-13 |